单选题If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures should be followed?（）A Pump only if the discharge is led to a shore tank or bargeB Pump only during the hours of darknessC Pump only on the outgoing tid

If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures should be followed?

A.Pump only if the discharge is led to a shore tank or barge

B.Pump only during the hours of darkness

C.Pump only on the outgoing tide

D.Pump only as much as is necessary

A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral "4" when the vessel ______.

A.speed begins to drop

B.stops

C.receives ice damage

D.becomes icebound

Pump out No. 2 port ballast tank to ______.

A.keep vessel afloating

B.refloat vessel listing to starboard

C.make vessel all-right

D.bring vessel upright

Heeling error is defined as the change of deviation for a heel of ______．

A.2° while the vessel is on an intercardinal heading

B.1° while the vessel is on a compass heading of 000°

C.2° and is constant on all headings

D.1° while the vessel is on a compass heading of 180°

A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing? ______.

A.Shift weight to the bow

B.Shift weight to the center of the boat

C.Shift weight to the stern

D.Throw excess weight overboard

If you must pump bilges while a vessel is in port，you should pump only ______．

A.If discharge is led to a shore tank or barge

B.During the hours of darkness

C.On the outgoing tide

D.As much as is necessary

If it becomes necessary for a stand-on vessel to take action to avoid collision，she shall NOT，if possible，().

A.Decrease speed

B.Increase speed

C.Turn to port for a vessel on her own port side

D.Turn to starboard for a vessel on her own port side